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<font face="Arial">Dear Kevin, <br>
<br>
Maybe you can try to define two window types in your TRNBUILD model :<br>
<br>
- a non-glazing one which models your large opening for the night<br>
- a normal glazing one which models the window for the day (same
areas as previous window)<br>
<br>
Be careful to define correct outwall and window areas.<br>
<br>
For the night, your may have to consider your glazing window as a
window with additionnal shading, to obtain the same thermal resistance
as your outwall </font><font face="Arial">by adding </font><font
face="Arial">an external thermal resistance </font><font face="Arial">(window
type manager - optional properties of shading devices). In the same
time, your non glazing window is opened (ie no optional properties of
shading devices defined). In that way, your glazing window will be
treated as an outwall (with the same thermal resistance as your
outwall) and your non glazing one as an opening.<br>
<br>
For the day, you may have to </font><font face="Arial">consider your
non-glazing window as a window with additionnal shading to obtain the
same thermal resistance as your outwall by adding </font><font
face="Arial">an external thermal resistance. In the same time, you
will have to define a total external shading device on that window to
keep out solar radiation. External thermal resistance of your glazing
window is null during the day.<br>
<br>
Use schedules or inputs to define those profiles.<br>
<br>
I think this will work fine. Someone may confirm?<br>
<br>
Best regards,<br>
<br>
</font>
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<td colspan="2"><font color="#000000" face="CALIBRI" size="2">Adrien
JEZEQUEL<br>
Simulations Thermiques Dynamiques</font></td>
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<br>
kevin maiques a écrit :
<blockquote
cite="mid:2ed1b1950901300126s2bafdf5cxe3fa3fcb344c28b9@mail.gmail.com"
type="cite">
<p class="MsoNormal" style="margin: 0pt;"><span style="" lang="EN-GB">Dear
TRNsys-user,</span></p>
<p class="MsoNormal" style="margin: 0pt;"><span style="" lang="EN-GB"> </span></p>
<p class="MsoNormal" style="margin: 0pt;"><span style="" lang="EN-GB">I
want to simulate natural night free-cooling with TRNflow.</span></p>
<p class="MsoNormal" style="margin: 0pt;"><span style="" lang="EN-GB">In
TRNflow I have a large opening that I open the night and close the day.</span></p>
<p class="MsoNormal" style="margin: 0pt;"><span style="" lang="EN-GB">This
large opening corresponds to a window in TRNbuil.</span></p>
<p class="MsoNormal" style="margin: 0pt;"><span style="" lang="EN-GB">My
question is : How can I simulate a window in TRNbuild who are a window
the day and a space (open; no glazing) the night?</span></p>
<p class="MsoNormal" style="margin: 0pt;"><span style="" lang="EN-GB"> </span></p>
<p class="MsoNormal" style="margin: 0pt;"><span style="" lang="EN-GB">Best
regards</span></p>
<pre wrap="">
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